Results 11 to 20 of about 1,634 (113)

An intraspecific origin of B chromosomes in Tetragonisca fiebrigi (Apidae: Meliponini) inferred from cytogenetic and nuclear genome size data [PDF]

Scientific Reports
Tetragonisca angustula and Tetragonisca fiebrigi are two stingless bees’ species commonly known as “jataí”. Cytogenetic data indicates the presence of B chromosomes in T. fiebrigi and absence in T. angustula, constituting a cytotaxonomic character.
Marina Souza Cunha, José Lino-Neto, Fernanda Aparecida Ferrari Soares, Wellington Ronildo Clarindo, Milton Rönnau, Lucio Antonio Oliveira Campos, Denilce Meneses Lopes   +6 more
doaj   +2 more sources

Cave-dwelling bats of Carajás National Forest: New cytogenetic data of threatened species. [PDF]

Ecol Evol
The Carajás National Forest, a Conservation Unit protected by law, is one of the few forest remnants in the southeastern region of Pará, Eastern Amazonia, Brazil, reconciling biodiversity protection with economic activities (i.e. mining). The present study aims to describe the chromosomal diversity of bats in natural caves of the Carajás National ...
da Silva JB, Benathar TCM, Azevedo RLF, Trevelin LC, Nagamachi CY, Oliveira G, Pieczarka JC.   +6 more
europepmc   +2 more sources

Chromosome distribution of four LTR retrotransposons and 18 S rDNA in coffea eugenioides [PDF]

Scientific Reports
Repetitive sequences are recognized for their roles in plant genome organization and function. Mobile elements are notable repeatome sequences due to their intrinsic mutagenic potential, which is related to the origin of adaptive novelties. Understanding
Mariana Cansian Sattler, Jéssica Coutinho Silva, Stéfanie Cristina Oliveira, Wellington Ronildo Clarindo   +3 more
doaj   +2 more sources

Embryonic abnormalities and genotoxicity induced by 2,4-dichlorophenoxyacetic acid during indirect somatic embryogenesis in Coffea [PDF]

Scientific Reports, 2023
Indirect somatic embryogenesis (ISE) is a morphogenetic pathway in which somatic cells form callus and, later, somatic embryos (SE). 2,4-dichlorophenoxyacetic acid (2,4-D) is a synthetic auxin that promotes the proliferation and dedifferentiation of ...
João Paulo de Morais Oliveira, Alex Junior da Silva, Mariana Neves Catrinck, Wellington Ronildo Clarindo   +3 more
doaj   +2 more sources

The tight bond between Fanconi anemia and aging [PDF]

Frontiers in Aging
Fanconi anemia (FA) is a rare genetic disorder characterized by genomic instability, bone marrow failure, physical abnormalities, and increased cancer susceptibility. Growing evidence suggests that.
Marco Antonio Mejía-Barrera, Marco Antonio Mejía-Barrera, Enya Enara Martínez-Torres, Enya Enara Martínez-Torres, Ulises Juárez-Figueroa, Leda Torres, Moisés O. Fiesco-Roa, Benilde García-de-Teresa, Juan Carlos Gomez-Verjan, Jorge Meléndez-Zajgla, Alfredo Rodríguez, Alfredo Rodríguez, Silvia Sánchez, Bertha Molina, Sara Frias, Sara Frias   +15 more
doaj   +2 more sources

DETECÇÃO DA VARIANTE ISODICÊNTRICA DA DELEÇÃO DE 20Q NA NEOPLASIA MIELODISPLÁSICA POR CITOGENÉTICA CLÁSSICA

Hematology, Transfusion and Cell Therapy, 2023
A neoplasia mielodisplásica (SMD) representa um grupo heterogêneo de doenças que acomete preferencialmente indivíduos idosos e possui uma ampla variação de manifestações clínicas e patológicas que têm em comum uma alteração clonal nas células ...
AL Nunes, SPPJ Frade, TN Teixeira, LV Ramos, IR Borges, FK Marques, US Cadar   +6 more
doaj   +1 more source

EVOLUTIONARY DYNAMICS OF AUTOPOLYPLOIDS IN NATURAL POPULATIONS: THE CASE OF TURNERA SIDOIDES COMPLEX [PDF]

BAG. Journal of Basic and Applied Genetics, 2022
Turnera sidoides (x=7) is one of the few well-studied South American autopolyploid complexes. Since polyploidy has played a prominent role within this complex, ongoing studies in T.
Kovalsky I.E., Elías G., Fernández S.A., Moreno E.M.S., Silva G.C., Roggero Luque J.M., Almirón N.E.A., Solís C., Dabrio A., Via Do Pico G.M., Seijo J.G., Solís Neffa V.G.   +11 more
doaj   +1 more source

IMPACTO PROGNÓSTICO DO PADRÃO DE EXPRESSÃO DE EZH2 EM NEOPLASIA MIELODISPLÁSICA

Hematology, Transfusion and Cell Therapy, 2023
Introdução: A Neoplasia Mielodisplásica (SMD) compreende a um grupo heterogêneo de doenças clonais das células pluripotentes hematopoiéticas, caracterizada por displasias na medula óssea (MO), citopenias no sangue periférico (SP) e um risco de evolução ...
GF Lima, BF Silva, IC Gonçalves, VL Lovatel, TS Fernandez   +4 more
doaj   +1 more source

Frequent copy number variants in a cohort of Mexican-Mestizo individuals

Molecular Cytogenetics, 2023
Background The human genome presents variation at distinct levels, copy number variants (CNVs) are DNA segments of variable lengths that range from several base pairs to megabases and are present at a variable number of copies in human genomes.
Silvia Sánchez, Ulises Juárez, Julieta Domínguez, Bertha Molina, Rehotbevely Barrientos, Angélica Martínez-Hernández, Alessandra Carnevale, Patricia Grether-González, Dora Gilda Mayen, Camilo Villarroel, Esther Lieberman, Emiy Yokoyama, Victoria Del Castillo, Leda Torres, Sara Frias   +14 more
doaj   +1 more source

High‐throughput RNA sequencing of the T cell receptor alpha and beta chains for simultaneous clonality and biological analyses in Sezary syndrome

Journal of Clinical Laboratory Analysis, Volume 37, Issue 23-24, December 2023., 2023
We performed RNA sequencing of TR alpha (TRA) and beta (TRB) in peripheral blood CD4+ T cells from Sezary Syndrome (SS) and psoriasis patients (PS) employed as controls and found correlated (A) and highly expanded predominant TRA and TRB complementarity‐determining regions 3 (CDR3) only in SS patients (B).
Gonzalo Blanco, Daniel López‐Aventín, Ramon M. Pujol, Andrea Gómez‐Llonín, Anna Puiggros, Manuela López‐Sánchez, Teresa Estrach, Mª Pilar García‐Muret, Ingrid López‐Lerma, Octavio Servitje, Beatriz Bellosillo, Manuel Muro, Blanca Espinet, Raquel Rabionet, Fernando Gallardo   +14 more
wiley   +1 more source